Resilient attachment for skis

ABSTRACT

A resilient attachment for skis in which the resilient function of the attachment is obtained by means of a resilient assembly including a spring that ensures safety locking of the attachment. One of the ends of the spring receives, either directly or not, the mechanical action that ensures resiliency and the other end acts on the locking device of the attachment.

United States Patent Inventor Georges P. J. Salomon 34, Avenue deLoverchy, Annecy, Haute- Savoir, France Appi. No. 695,153 Filed Jan. 2,1968 Patented Nov. 2, 1971 Priority Jan. 4, 1967 France 89,992

RESILIENT ATTACHMENT FOR SKIS 3 Claims, 6 Drawing Figs.

Int. Cl...... A63c 9/084 Field of Search 280/1 1.35, 11.35 HA v [56] 5References Cited FOREJGN PATENTS 240,755 6/1965 Austria 280/1135 246,6284/1966 Austria 280/1135 1,463,974 11/1966 France 280/1135 PrimaryExaminer- Benjamin Hersh Assistant Examiner-John A. PekarAttorney-Raymond A. Robic ABSTRACT: A resilient attachment for skis inwhich the resilient function of the attachment is obtained by means of aresilient assembly including a spring that ensures safety locking of theattachment. One of the ends of the spring receives, either directly ornot, the mechanical action that ensures resiliency and the other endacts on the locking device of the attachment.

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IN VENI'OR Georgos P. J SAL 0M0 ATTORNEY RESILIENT ATTACHMENT FOR SKISThe present invention relates to improvements in resilient attachmentfor skis.

Resilient attachment for skis are known in which the resilient functionis obtained by means of a spring or the like arranged in the kinematicchain of the mechanism. This arrangement most often requires animportant volume that leads to bulky attachments.

The present invention proposes to overcome these disadvantages in asimple and efiicient manner.

According to the invention, the resilient function of the attachment isobtained by means of a plurality of resilient elements, for instance aspring that allows safety locking and in which one end receives, eitherdirectly or not, the mechanical action that provides resiliency and theother end acts on the locking device of the attachment, for instance bypressing a ball into an appropriate housing.

The invention will besides be better understood by the description thatfollows having reference to the appended drawings illustrating, by wayof nonlimitative examples, the preferred embodiments of the invention.

FIGS. 1 and 2 areplan views, partly in cross section, of an attachmentaccording to the invention shown in locking and releasing positionsrespectively;

FIG. 3 is a plan view, partly in cross section, of another embodiment ofthe invention;

FIG. 4 is a cross-sectional view of a rearward attachment made accordingto the invention;

FIGS. 5 and 6 are cross-sectional views of two other embodiments of rearattachments made according to the invention.

In FIG. I, the attachment 1 is held in locked condition by means of apiston 2 that a spring 3 presses against a flat surface of thearticulation or pivot pin 6 of the said attachment. The opposite end ofthe spring does not bear against a stationary or mobile adjustingelement but against a slidable sleeve or piston 7, itself bearingagainst a boss 8 of the jaw 9, the said jaw articulated or pivoted tothe attachment by an axle pin 10.

During torsion stresses of the users boot along arrow 6 of FIG. 2, forinstance, the jaw 9 through boss 8 pushes the sleeve or piston 7 tocompress spring 3; if the torsion ceases, the reversibility of theaforesaid movements brings the jaw back into the position of FIG. 1. 0nthe contrary, if the torsion forces increase, the said jaw drives theattachment 1 after the boss 8 has come against one or the other of thelateral walls of the bore in which the piston or sleeve 7 slides, thesaid attachment I only opening when the forces are sufficiently large topush the piston 2 back.

Because the compression force of the spring against the locking elementis increased due to its precompression resulting from the prior rotationof the jaw 9, a spring of relatively small dimensions can be used.

In FIG. 3, the jaw as well as a locking member or crank 21 pivots on anaxle pin 22 having a flat surface against which a piston 23 abuts, thelatter being pressed by a spring 26 also pressing a ball 27 into a ballrecess 28 of the said locking member or crank 21. Under abnormal torsionforces, the jawlocking member assembly may resiliently oscillate aboutthe axle 22 by pushing piston 23 slightly back. If the forces increase,the locking member or crank 21 comes in abutment, through slot 29,against a stationary lug 30 and, in order to obtain release, the jawmust overcome the locking action of the ball 27.

In FIG. 4, a boot 3] is securely held on a ski 32 by a jaw 33articulated on an axle 36 solid with a support 37. A crank or lockingmember 38 also pivots on axle 36. The said jaw may resiliently move bycompressing a spring 39 of the locking system. If the forces increase,the crank or locking member 38 is driven by the jaw and releases thelocking system which, in this instance, is a ball 40 pressed by the saidspring 39. A screw 41 limits the movements of the jaw and allows itsadjustment.

FIG. 5 only differentiates from FIG. 4 in that the jaw 46 does not actdirectly on the spring 47 but through a cam ramp 48 Epshing a ball 49back, a second ball 50 serving to lock the loc mg member or crank 51 inrelation to its support 52. In

FIG. 5 also, a screw 53 serves to limit and adjust the said jaw.

FIG. 6 is an adaptation of the mechanism described in FIG.

3 to a rear attachment. The resilient stroke is obtained by pressing apiston 60 back, jaw 61 driving a locking member or crank 62 through thelocking of a ball 63. When the said locking member or crank comesagainst a lug 66 of a support 67, the jaw must overcome the lockingaction of the ball in order to be released.

Although specific embodiments of the invention have been described, itwill be understood that the invention is not to be limited thereby butshould only be construed from the appended claims.

lclaim:

l. A resilient attachment for holding one end of a boot onto a ski andto allow limited movement of the boot under a predetermined forceapplied by the skier and complete release of said boot from saidattachment upon application of a force greater than said predeterminedforce, said attachment comprising:

a. a jaw for holding one end of said boot upon said ski, said jaw formedwith a rearwardly extending boss;

b. a support fixed to said ski and having a baseplate formed I, with anarcuate top wall defining and including a ball recess;

c. a pivot pin extending across said support above said baseplate; saidjaw mounted on said pin for pivotal movement thereof; I

d. a locking member mounted to pivot on said pin and having a portionextending beneath said jaw;

e. said portion formed with a bottom arcuate surface adapted to facesaid baseplate arcuate top and a bore therethrough between said jaw andbaseplate;

f. spring means mounted in said bore to press on said boss;

g. means to limit pivoting of said jaw through said limited movement,and

h. a ball at the lower end of said spring normally fitting in said ballrecess to prevent pivoting of said locking member and release of saidjaw and boot until after said predetermined force is exceeded and saidball moves out of said recess.

2. A combination as claimed in claim 1 wherein said boss has a holetherethrough and is spaced from said locking member a distance such asto allow said limited movement, wherein said means to limit said jawthrough said limited movement is an element projecting from said lockingmember and extending through said hole; said element having a head atthe end away from said member to restrict movement of said jaw to saiddistance.

3. A combination as claimed in claim 1 wherein said means to limit saidjaw through said limited movement comprises a cam ramp on said boss anda shoulder at one end of said ramp for abutment with said locking memberwhen said jaw pivots through said limited movement.

a a a It u

1. A resilient attachment for holding one end of a boot onto a ski andto allow limited movement of the boot under a predetermined forceapplied by the skier and complete release of said boot from saidattachment upon application of a force greater than said predeterminedforce, said attachment comprising: a. a jaw for holding one end of saidboot upon said ski, said jaw formed with a rearwardly extending boss; b.a support fixed to said ski and having a baseplate formed with anarcuate top wall defining and including a ball recess; c. a pivot pinextending across said support above said baseplate; said jaw mounted onsaid pin for pivotal movement thereof; d. a locking member mounted topivot on said pin and having a portion extending beneath said jaw; e.said portion formed with a bottom arcuate surface adapted to face saidbaseplate arcuate top and a bore therethrough between said jaw andbaseplate; f. spring means mounted in said bore to press on said boss;g. means to limit pivoting of said jaw through said limited movement,and h. a ball at the lower end of said spring normally fitting in saidball recess to prevent pivoting of said locking member and release ofsaid jaw and boot until after said predetermined force is exceeded andsaid ball moves out of said recess.
 2. A combination as claimed in claim1 wherein said boss has a hole therethrough and is spaced from saidlocking member a distance such as to allow said limited movement,wherein said means to limit said jaw through said limited movement is anelement projecting from said locking member and extending through saidhole; said element having a head at the end away from said member torestrict movement of said jaw to said distance.
 3. A combination asclaimed in claim 1 wherein said means to limit said jaw through saidlimited movement comprises a cam ramp on said boss and a shoulder at oneend of said ramp for abutment with said locking member when said jawpivots through said limited movement.